Seoul Gimpo International Airport

Compiled by Bill Gao

Seoul, Seoul-teukbyeolsi (Seoul Special City) (South Korea)

IATA: GMP ICAO: RKSS

Longest Active Runway

11,811 ft

3,600 meters

Field Elevation

59 ft

18 m MSL

Runway Inventory

2 active

Lighted / Paved

Coordinates & Class

37.5583°, 126.7910°

LARGE AIRPORT

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Multi-Universe Rankings & Statistical Standing

How ranks work →

RunwayFacts Published Dataset

tied #219 of 650

In curated primary commercial index

Global Commercial Universe

#387 of 7558

Top 5.2% percentile worldwide

For airports with equal runway length, the worldwide order does not indicate a length difference.

National Standing (South Korea)

#2 of 4 in KR

#2 of 26 in full national registry

vs Large Airport Median

+18.1%

Compared to 10,000 ft baseline

💡 GMP in numbers: 11,811 ft longest runway · tied #219 of 650 published · #387 of 7,558 worldwide (top 5.2%) · #2 in South Korea.

🔬 Operational & Aerodrome Engineering Comparative Analysis

Longest runway ≥10,500 ft

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Elevation & National Context

Lowland Aerodrome (<2,000 ft)

GMP lies at 18 m (59 ft), #497 of 650 published airports by elevation and 21 percentile among 7,558 worldwide. It is 18 ft above the South Korea median (41 ft, 4 airports); CJU is highest at 118 ft, 59 ft higher than GMP.

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Regional Density & Alternates (100 NM)

1 Qualifying Aerodrome in Vicinity

Closest of 1 paved-runway (≥5,000 ft) neighbour within 100 NM: Incheon International Airport (ICN), 17.1 NM, 13,123 ft. ICN has the radius's longest runway, 1,312 ft more than GMP.

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Runway Inventory & National Standing

Primary Runway: 11,811 ft (3,600 m)

GMP runways: 14L/32R 11,811 × 148 ft asphalt (asp); 14R/32L 10,499 × 197 ft asphalt (asp). National standing: #2 of 4 in South Korea; ICN leads by 1,312 ft (13,123 ft). +18.1% vs the 10,000 ft baseline.

🛫 Physical Runway Inventory & Surface Engineering

Runway Designator	Length (ft / m)	Width (ft / m)	Surface Material	Lighting	Status
14L/32R	11,811 ft (3600 m / 3.600 km)	148 ft (45m)	`Asphalt (ASP)`	✅ Lighted	✅ Active
14R/32L	10,499 ft (3200 m / 3.200 km)	197 ft (60m)	`Asphalt (ASP)`	✅ Lighted	✅ Active

🧭 Comparative Aerodromes (100 NM Radius, ≥5,000 ft Paved)

Great-circle Haversine spatial proximity matching for commercial facilities with paved runway capacity within 100 NM.

Aerodrome Name	IATA	Distance	Longest Runway	Lighting
Incheon International Airport (Seoul)	`ICN`	17.1 NM (31.7 km)	13,123 ft	✅ Lighted

🛡️ Source: OurAirports Open Aviation Database, snapshot 2026-09-01 · Provenance →